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Follow these steps:
1. Run in cooling mode at least 10 minutes.
2. Measure OUTDOOR AMBIENT TEMPERATURE within 6 inches of coil.
3. Measure SUCTION LINE PRESSURE.
4. Find the TARGET LIQUID PRESSURE at the intersection between the SUCTION LINE
PRESSURE and the OUTDOOR AMBIENT TEMPERATURE, if falls between rows or
columns then estimate the TARGET LIQUID PRESSURE or SUCTION LINE PRESSURE
falls between rows or columns then estimate the TARGET LIQUID PRESSURE between
the rows and columns.
5. Compare the measured LIQUID LINE PRESSURE to the TARGET LIQUID PRESSURE,
add charge to raise the pressure or recover charge to lower it.
6. After running unit for 10 minutes if the SUCTION LINE PRESSURE changes, go
back to step 2 otherwise remove test equipment and cover the valves.
7.2 CHARGING BY WEIGHT
For a new installation,evacuation of interconnecting tubing and indoor coil is adequate;
otherwise,evacuate the entire system. The factory refrigerant charge in the outdoor
unit is sufficient for 15 feet of standard size interconnecting liquid line. Calculate
actual charge required with installed liquid line size and length,please see 4.1 of
instruction.
With an accurate scale (+/- 1 oz.) adjust charge difference between that shown on
the unit data plate and that calculated for the new system Installation. if the entire
system has been evacuated, add the total calculated charge.
7.3 FINAL LEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
detected, the refrigerant should be recovered before repairing the leak. The Clean Air
Act prohibits releasing refrigerant into the atmosphere .
8.0 WARRANTY
Assist owner with processing Warranty cards and/or online registration.
8.1 MAINTENANCE
. Dirt should not be allowed to accumulate on the indoor or outdoor coils or other parts
1.
in the air circuit. Clean as often as necessary to keep the unit clean. Use a brush,
vacuum cleaner attachment, or other suitable means.
2. The outdoor fan motor is permanently lubricated and does not require periodic oiling.
3. Refer to the furnace or air handler instructions for filter and blower motor maintenance.
4. The indoor coil and drain pan should be inspected and cleaned regularly to assure
proper drainage.
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It is unlawful to knowingly vent, release or discharge refrigerant into the open air
during repair, service, maintenance or the final disposal of this unit. When the
system is functioning properly and the owner has been fully instructed, secure the
owner's approval.
CAUTION
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